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| class Point{
double x,y,z;
public Point(double x,double y,double z){
this.x=x;
this.y=y;
this.z=z;
}
};
class OpenGLInterface implements GLEventListener,KeyListener,MouseListener,MouseMotionListener{
private GLCanvas canvas;
public ArrayList<Point> buffer;
public void setAxe(ArrayList<Point> buffer){
this.buffer=(ArrayList<Point>)buffer.clone();
this.canvas.repaint();
}
public OpenGLInterface(GLCanvas canvas){
this.canvas=canvas;
buffer=new ArrayList<Point>(100);
}
public void init(GLDrawable glDrawable){
GL gl=glDrawable.getGL();
gl.glPointSize(4.f);
}
public void display(GLDrawable glDrawable){
GL gl=glDrawable.getGL();
GLU glu=glDrawable.getGLU();
gl.glClearColor(0.f,0.f,0.f,1f);
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
glu.gluPerspective(45,1,1,100);
glu.gluLookAt(0,0,5,0,0,0,0,1,0);
gl.glColor3d(1.,0.,0.);
Point p1=buffer.get(0);
Point p2=buffer.get(1);
Point p3=buffer.get(2);
Point p4=buffer.get(3);
gl.glBegin(GL.GL_QUADS);
gl.glVertex3d(p1.x,p1.y,p1.z);
gl.glVertex3d(p2.x,p2.y,p2.z);
gl.glVertex3d(p3.x,p3.y,p3.z);
gl.glVertex3d(p4.x,p4.y,p4.z);
gl.glEnd();
gl.glFlush();
}
public void reshape(GLDrawable glDrawable,int x,int y,int width,int height){
GL gl=glDrawable.getGL();
GLU glu=glDrawable.getGLU();
gl.glViewport(0,0,width,height);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
}
public void displayChanged(GLDrawable arg0, boolean arg1, boolean arg2) {
// TODO Auto-generated method stub
}
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
public void keyPressed(KeyEvent arg0) {
// TODO Auto-generated method stub
}
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseClicked(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseDragged(MouseEvent arg0) {
// TODO Auto-generated method stub
}
public void mouseMoved(MouseEvent arg0) {
// TODO Auto-generated method stub
}
/*public void display(GLDrawable arg0) {
// TODO Auto-generated method stub
}*/
}
class Graph{
private class WindowAttribute{
double xMin=0;
double xMax=10;
double yMinr=0;
double yMax=10;
double xStep=1;
double yStep=1;
boolean showAxes=true;
};
GLCanvas canvas;
OpenGLInterface gLInterface;
public Graph(){
canvas=createDefaultCanvas();
gLInterface=createInterface();
}
private GLCanvas createDefaultCanvas(){
Frame frame=new Frame("OpenGL");
GLCanvas canvas1=GLDrawableFactory.getFactory().createGLCanvas(new GLCapabilities());
frame.add(canvas1);
frame.setSize(500,500);
frame.setLocation(400,250);
frame.setBackground(Color.BLUE);
frame.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
frame.setVisible(true);
return canvas1;
}
private OpenGLInterface createInterface(){
OpenGLInterface listener=new OpenGLInterface(canvas);
canvas.addGLEventListener(listener);
canvas.addKeyListener(listener);
canvas.addMouseListener(listener);
canvas.addMouseMotionListener(listener);
return listener;
}
public StringBuffer ReadEquation(){
return new StringBuffer("");
}
public void setWindowAttribute(WindowAttribute wa){
}
public void drawAxes(){
ArrayList<Point> xAxe=new ArrayList<Point>(4);
Point p1=new Point(-1.,1.,0.);
Point p2=new Point(-1.,-1.,0.);
Point p3=new Point(1.,1.,0.);
Point p4=new Point(1.,-1.,0.);
xAxe.add(p1);
xAxe.add(p2);
xAxe.add(p3);
xAxe.add(p4);
gLInterface.setAxe(xAxe);
}
};
public class openGL_class {
public static void main(String[] args) {
Graph g=new Graph();
g.drawAxes();
}
} |
